American singer and actress Lynda Carter recently celebrated her 40th wedding anniversary with an Instagram post dedicated to her late husband, Robert Altman. On January 29, 1984, Lynda Carter married the love of her life, Robert Altman. Although he is no longer around to celebrate their 40th anniversary, she is still paying tribute to their special day. Carter recently posted a sweet Instagram share featuring a black and white photo of her and her husband on their wedding day alongside an emotional caption. “I miss him and I thank him every day, for all he gave to us,” she wrote. “I will alwa…